Home / 142,949.52-197,279.28-82,531.22

Finding the Fourth Proportional to 142,949.52, 197,279.28 and 82,531.22

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Solution

The fourth proportional to 142,949.52, 197,279.28 and 82,531.22 is: 113,898.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,949.52 : 197,279.28 = 82,531.22 : x
  2. Step 2: Convert to fraction form
    142,949.52/197,279.28 = 82,531.22/x
  3. Step 3: Cross multiply
    142,949.52x = 197,279.28 × 82,531.22
  4. Step 4: Simplify right side
    142,949.52x = 16,281,698,672.73
  5. Step 5: Solve for x
    x = 16,281,698,672.73/142,949.52
  6. Step 6: Final answer
    x = 113,898.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.